I'm on S3 and plan on finishing, but I feel it's very drawn out and honestly for a showtime series, very disappointing. I love the way we see from different perspectives and I think they do a great job tying it a together. But it's really slow and frankly boring and I'm not a fan of quite a few of the characters.
Ps. Maura Tierney was on ER and her characters name was Abby Lockheart, found it interesting with their name choices in this show. (I'm lame)